

ABOUT US
Founded in 1998 by Dan Black and Martin Blum, Black+Blum is a London-based design company that produces high quality and eco-friendly lunch boxes, water bottles and thermoses. Unique and sustainable design is at the core of our brand and key to product development. We are passionate about creating genuinely functional, innovative and sustainable products that encourage healthy and eco-conscious living.

The entire range is made to last and has won over 25 design awards from around the globe. We are sold in over 60 countries, and have warehouse centres in the UK, EU and USA.


PROUD MEMBERS OF:


“We create products that people love to use, and are proud to own.”
OUR PLEDGE TO THE PLANET
Sustainability is at the core of our design philosophy. We work with durable materials, naturally sourced where possible, creating products to be reused for life.

We are proud members of 1% for the Planet which means we commit to giving at least 1% of our sales revenue to non-profit environmental charities. Our chosen charity partners are City Harvest and Trees for Cities. City Harvest rescues surplus food and redistributes it to food banks, schools and community groups. Trees for Cities are the only UK charity working at a national and international scale to improve lives by planting trees in cities.


20+ YEARS OF DESIGN
Every product we release has been uniquely designed by us in our studio in London. Every detail is considered for long term use, and every material is sourced to the highest standard to create something truly beautiful.
From concept to final product, we conduct rigorous research and development to ensure everything we create has a place in the world, meets a real need, and will last a lifetime.

OUR MATERIALS
Our materials are chosen with great care - we consider how they are required to function, their durability, and their impact on the environment. We choose natural materials where possible, but our biggest aim is to create products which are made to last.

WOOD COMPOSITE

We mix recycled and sustainably-sourced (FSC and PEFC) wood with either polypropylene or TPR. This material can be recycled into itself but most importantly, it gives a highly durable finish that will age well.



CORK
We love using sustainably-sourced cork as a lid material on our vacuum insulated food thermoses, and on some of our water bottles. It is renewable, biodegradable and 100% natural.
BAMBOO
It’s naturally anti-fungal, and anti-bacterial - making it a perfect material to use as a lid/ chopping board on some of our lunch boxes. We apply a natural mineral oil finish to seal it and, if used and cared for properly, it will last a lifetime.
CHARCOAL
We use active charcoal as a natural and plastic-free water filter to remove contaminants and add good minerals to tap water. Following a traditional Japanese technique, our charcoal producers only prune the branches of their fast growing native trees, without removing the roots.
RECYCLED PET



We use recycled polyethylene (PET), made from things like plastic bottles, for the outer fabric of our lunch bag, and are looking to use it in other product ranges. It is tough, hard wearing, water repellent and easy to wipe clean.

PLASTIC
Every time we use a plastic, we use it sparingly and responsibly because sometimes, a specific plastic is the best material for the job required. These include polypropylene, Tritan, and POM.
STAINLESS STEEL
We use high quality 304 – 18/8 stainless steel for its long-lasting durability and excellent resistance to corrosion and rust. It is also 100% recyclable. Most importantly, it is a material that can last a lifetime and even improve with age and use.
GLASS
The glass used in some of our products is borosilicate – it is lightweight, strong and can withstand extreme temperatures (so safe for use in ovens, microwaves, freezers or dishwashers). It is also thermal shock resistant, so less likely to shatter when exposed to sudden temperature change.













TRAVEL CUP
Eliminating the need for single-use cups, from the café or from home, on your commute or on the trail – our new Travel Cup has perfected the experience of taking your brew with you, wherever you want to go.
It took us three years to test and improve on existing products in this established and highly competitive market, and we only wanted to release this range if it
was truly new and better than what was available. We have created our own unique designs - Two Travel Cups, both 100% leak proof but answering different needs and priorities – taste-neutral glass for flavour connoisseurs or insulated stainless steel to keep drinks hot or cold for hours.


Olive TC-SS010
INSULATED TRAVEL CUP




340 ml 12 fl oz
Made from high quality stainless steel, it will keep your drinks hot for up to 5 hours, or cold for 8. The lid is 100% leak proof, lockable and easy to disassemble to clean. This is a no-nonsense, designed to function travel cup that will last you a lifetime.


MATERIALS
304/18-8 stainless steel, silicone, polypropylene, nylon, POK, POM
Ocean TC-SS005
DIMENSIONS
Orange TC-SS003
Slate TC-SS015


Olive TC-GR010
GLASS TRAVEL CUP


340 ml 12 fl oz
Crafted from lightweight borosilicate glass, this design will give you a completely taste-neutral experience for either your favourite home brew or coffee shop roast. The non-slip insulating silicone sleeve gives protection to the surprisingly tough glass inner, and ensures you don’t burn your hands. The top is 100% leak proof, lockable and easy to dismantle for thorough cleaning.



MATERIALS
Ocean TC-GR005
Hand-blown borosilicate glass, silicone, polypropylene, nylon, POK, POM DIMENSIONS

Coral TC-GR0011
Slate TC-GR015
Dishwasher-safe lid easily dismantles for thorough cleaning
Protective & non-slip sleeve
Borosilicate glass cup is completely taste-neutral



GLASS
A material used to store goods for centuries, glass has a variety of benefits; taste-neutral, fully recyclable, and aesthetically pleasing. Many of our glass products are made with borosilicate glass, known for its lightweight but durable qualities. All of our glass lunch boxes and water bottles are 100% leak proof and come in a range of different sizes and colours.




Olive GR-WB-M010

GLASS WATER BOTTLE





600 ml 20 fl oz
Ocean GR-WB-M005
We wanted to create a minimal design that felt sturdy and authentic, allowing you to enjoy the simplicity that comes with drinking from glass. The thread on the inside of the neck means it has a smooth edge surface, making it easier, and more enjoyable to drink from. The 100% leak proof lid features high quality stainless steel inside, ensuring no plastic contact with water. A protective non-slip silicone sleeve provides a reassuring grip and comes in 7 different colours.

Slate GR-WB-M015


MATERIALS
Orange GR-WB-M003
Hand-blown borosilicate glass, 304/18-8 stainless steel, nylon, polypropylene, silicone (Almond sleeve is TPE with sustainable wood fibre)
Coral GR-WB-M011
Burgundy GR-WB-M004
Almond GR-WB-M014
Inside thread gives a better drinking experience



Steel lid is strong, leak proof, and taste-neutral
Nylon paracord carry loop
GLASS LUNCH COLLECTION
Our leak proof and lightweight glass lunch range comes in 3 sizes and 2 colours. The durable borosilicate glass bowl or pot sits snuggly within the microwave-safe and protective base, which is made from polypropylene combined with sustainably-sourced wood fibre. A silicone lid prevents splattering when microwaving, and the stainless steel lid screws onto the base to create a protective and leak proof seal.

MATERIALS

Borosilicate glass, silicone, polypropylene with sustainable wood fibre, 304/18-8 stainless steel
DIMENSIONS
Glass Lunch Bowl: D14.5 × H8 cm | D5.7 × H3.2 in
Glass Lunch Pot Large: D12 × H9.5 cm | D4.7 × H3.7 in

Glass Lunch Pot: D9.5 × H11 cm | D3.7 × H4.3 in









Stainless steel screw tight lid




Lightweight glass which is microwave/ oven-safe
Microwave-safe

STAINLESS STEEL









One of our most popular ranges, our stainless steel products truly embody the ethos of “buy once, buy well”. Built for almost any environment, they are incredibly durable and only get better with age and continuous use.


STAINLESS STEEL BENTO BOX

Designed in collaboration with bento expert, Sara Kiyo Popowa, and taking inspiration from Japan, it is one of the first fully leak proof steel bentos on the market. Reflecting traditional proportions whilst maintaining the Black+Blum design aesthetic, it includes two identical boxes which stack neatly atop each other. A steel fork is hidden beneath the antibacterial bamboo lid and each box has a generous capacity of 500ml, so can be used individually or as a pair. Breakfast and lunch, lunch and snacks, this box is all you need for the day.

MATERIALS
Bamboo chopping board/lid Airtight vacuum sealed lids

Stainless steel fork stores under lid
Stainless steel food divider
1x or 2x leak proof stainless steel containers


‘The way we eat has the power to change the future.’ Designing a bento box with Black+Blum has been a dream project. I hope you will enjoy using it. Sara x
Sara Kiyo Popowa is an artist, photographer and a passionate advocate of a plant-based lifestyle. Her recipe book Bento Power features her unique approach to packed lunch - good for you and for the planet.
www.shisodelicious.com | @shisodelicious
STAINLESS STEEL SANDWICH BOX LARGE STAINLESS STEEL SANDWICH BOXES
Made from high quality stainless steel with a naturally antibacterial bamboo lid and a silicone band, they are two of our favourite designs. The lid doubles as a chopping board or serving plate, and the larger size includes a silicone compartment which is microwave-safe. The lid is held securely in place by a silicone strap so everything stays safe insidethis box is perfect for the park, the commute and the trail.





MATERIALS

304/18-8 stainless steel, natural bamboo, silicone

DIMENSIONS
Stainless Steel Sandwich Box Large: L19 × W13.5 × H7.5 cm | L7.5 × W5.3 × H3 in
Olive BAM-SB-L010 Ocean BAM-SB-L005 Orange BAM-SB-L003
Stainless Steel Sandwich Box: L22 × W14.5 × H5 cm | L8.7 × W5.7 × H2 in 1.25 L 42 fl oz
Silicone compartment included





STAINLESS STEEL LUNCH BOX LARGE STAINLESS STEEL LUNCH BOXES
The ultimate product for outdoor adventurers and busy commuters, this design is incredibly sturdy and a favourite among those living plastic-free and zero-waste. The silicone valve creates a secure and leak proof vacuum-sealed closure and the larger size includes a slider/divider to separate your food. Both sizes include a stainless steel fork and coloured silicone strap for added security.
MATERIALS
304/18-8 stainless steel, silicone
DIMENSIONS
Stainless Steel Lunch Box Large: L20 × W14 × H6 cm | L7.8 × W5.5 × H2.3 in







Stainless Steel Lunch Box: L17.5 × W13 × H5 cm | L7 × W5.1 × H2 in
Olive BAM-SS-L010 Ocean BAM-SS-L005 Orange BAM-SS-L003
Slider/divider included to help separate your food






Olive BAM-FFB-S010
FOOD FLASK
400 ml 13.5 fl oz
Insulated stainless steel and 100% leak proof, the Food Flask is vacuum-sealed, keeping food hot for up to 6 hours, or cold for 8. The lid has a full-steel underside, so there’s no plastic contact with food, and comes with a wood fibre polypropylene spoon, which fits snuggly to the side. It’s held in place by a nylon strap which comes in 3 colours. A generous capacity in a compact package, it’s simple, sleek and made to last.





MATERIALS
304/18-8 stainless steel, polypropylene, silicone, nylon, polypropylene with wood fibre
DIMENSIONS
Ocean BAM-FFB-S005 Orange BAM-FFB-S003
Vacuum-insulated flask keeps food hot or cold


Full stainless steel food contact

Ladle with wood fibre designed for easy eating

EXPLORER BOTTLES






It’s all in the name, this products was made for adventures. We wanted to create something which was a step above our other steel bottles, to deal with the toughest environments. Fully insulated to keep drinks hot or cold for hours, it comes in 2 generous sizes. The smooth rim with inside thread makes staying hydrated a dream, and, as always the lid is 100% leak proof. This bottle is truly at home in the great outdoors and will last a lifetime.
MATERIALS
DIMENSIONS







INSULATED WATER BOTTLE



750 ml 25 fl oz 500 ml 17 fl oz
Minimalist design and no-fuss functionality, our Insulated Water Bottle does exactly what you need it to. Keeps drinks cold for up to 24hrs or hot for up to 12hrs, and the vegan leather strap means no missing lid. Our signature style bottleneck has the thread on the inside, giving a smooth and comfortable opening and the wide spout allows for easy pouring. This bottle is a favourite among urban commuters and countryside walkers alike, comes in 3 colours and is 100% leak proof.
MATERIALS


304/18-8 stainless steel, polypropylene, vegan leather, silicone

DIMENSIONS
Insulated Water Bottle Large (750ml): D7.7 × H28.5 cm | D3 × H11 in

Olive BAM-IWBB-L010
Ocean BAM-IWBB-L005 Orange BAM-IWBB-L003 34
Extra wide spout allows to add ice cubes & charcoal filters Full-steel liquid contact






STEEL BOTTLE
600 ml 20 fl oz
We’ve gone back to basics with our single-walled lightweight stainless steel bottle, for those who enjoy the simple things in life. It’s easy to use, beautiful in its form and includes a natural cork leak proof lid, with a convenient carry-loop. It’s surprisingly compact for its capacity and fits easily into standard bike bottle cages and cup holders.


MATERIALS
304/18-8 stainless steel, polypropylene, silicone, natural cork
DIMENSIONS
D7.5 × H20 cm | D2.95 × H7.9 in
Olive BAM-WBB-S010
600ml 500ml
Ocean BAM-WBB-S005
Steel capped lid ensures plastic-free liquid contact 165g 20cm x 7.5cm 380g 26cm x 7cm Compact size/weight when compared with standard double-walled vacuum bottle




CHARCOAL FILTRATION






Activated charcoal has been used for centuries to remove toxins, treat digestive ailments, and filter drinking water. We quickly realised that using it in tap water not only made it taste delicious, but it completely eliminated the need for bottled water, and the single-use plastic that comes with it. What began with one bottle has quickly expanded to an entire range, with charcoal filtration being one of our bestselling collections.


We source our charcoal from the skilled artisan makers of Laos as they follow strict conservation rules to protect the surrounding forests. The fast-growing native trees
are pruned and the wood is transported to the kiln. It is stored there for 1 month untouched to dry the wood. It is placed inside the kiln and burned until it reaches 1200°C to make it red-hot and carbonised. The charcoal is removed and quickly covered with a powder made from earth, sand and ash, and this gives the charcoal surface a whitish hue. This process, which takes 21 days, produces what is called ‘Binchotan’ charcoal. The rapid rise in temperature, followed by a quick cooling, incinerates the bark and leaves a smooth, hard surface, and creates a product which can be used for deordorising, dehumidifying and filtering water.
BINCHOTAN CHARCOAL HISTORY
It is believed that a form of Binchotan charcoal (sometimes referred to as ‘white charcoal’) was introduced to Japan by a monk and scholar called Kukai 1,200 years ago. However, it wasn’t until the Edo Period (17th century) that a man called Binchuya Chozaemon made it popular.
HOW IT WORKS?
This type of filtering works using a process similar to reverse osmosis. Binchotan charcoal has an incredibly porous surface with tiny cavities orientated in many directions - just 1 gram has a surface area of 500m² (the size two tennis courts). The positive ions of contaminants in the water (like chlorine) are attracted to the negative surface of the carbon where they are held. In reverse, the charcoal releases its natural minerals such as calcium, potassium and magnesium back into the water, which softens it and enhances the taste.

LASTS 6 MONTHS*
Makes tap water taste great
Chlorine from tap water is adsorbed by the charcoal

Minerals from charcoal are released into the water
* Recharge your charcoal after 3 months of use by boiling it for 10minutes. After 6 months recycle as fertiliser, deodoriser or fuel
Filters water in 1-8 hours
CHARCOAL WATER FILTERS
Binchotan charcoal makes tap water taste great! Add to water and leave for 1 – 8 hours, then enjoy clean, filtered, and delicious drinking water. Each stick lasts 6 months and comes vacuum-packed in recyclable plastic for immediate use. Counter POS available (see p65).


Also available in a 4-pack giving you 2 years’ worth of filtration. Each filter is individually vacuum-packed in recyclable plastic for immediate use.

MATERIALS
100% natural wood

DIMENSIONS & PRODUCT CODES
Single Charcoal Water Filter (EGS001-1B): (approx.) D2.5 × L11.8 cm | D1 × L5 in
Charcoal Water Filter 4-pack (EGS004): W9.5 x L16.5 × H7 cm | W3.8 x L6.5 x H2.8 in
Fits in all our bottles
CHARCOAL WATER FILTER & COIL
Turn any bottle into a filtered bottle with our universal charcoal coil, it comes with an active charcoal stick giving you 6 months of clean, clear and delicious water. No rattling and no scratches, it’s locked into place with a spring coil. It’s taste-neutral and easy to use.

Counter POS available (see p65).
MATERIALS
304/18-8 stainless steel, 100% natural wood (1 x charcoal & 1 x steel holder included in each pack)
DIMENSIONS & PRODUCT CODE

Dimensions vary (15mm to 28mm diameter, maximum length 118mm)
EGS001-1C
Fits in any bottle! (min. 30mm opening)
Makes tap water taste great
CHARCOAL WATER FILTER PIECES - 5KG

Display ready packaging
As more and more people are looking to live plastic-free and zero-waste, our 5kg bulk pack of charcoal allows consumers to buy by weight, and bring their own packaging. The shelfready box allows you to select the amount you need, and also illustrates the secondary uses of charcoal to extend its life, such as a deodoriser or dehumidifier.

Olive
EGO-EGG010
Ocean
EGO-EGG005
EAU GOOD GLASS
650 ml 22 fl oz
Made from hand-blown durable borosilicate glass, this bottle includes an active charcoal water filter and coil, and is protected by a recycled polyester insulating sleeve. Its lid is a natural wood fibre polypropylene mix and is 100% leak proof. Never has water looked so clear or tasted so clean.




MATERIALS
Hand-blown borosilicate glass, 304/18-8 stainless steel, polypropylene with wood fibre, recycled polyester, silicone, polypropylene
DIMENSIONS
Removable stainless steel coil to secure your charcoal in place

Recycled polyester sleeve for extra protection

Steel capped lid ensures plastic-free water contact

EAU GOOD
800 ml 27 fl oz
Our iconic water bottle comes with an active charcoal filter that locks easily in place, thanks to the innovative squeezeand-lock charcoal groove. The natural cork lid with stainless steel closing ring is watertight, and the colourful fabric loop makes it easy to carry.

MATERIALS





Tritan™, 304/18-8 stainless steel, nylon, silicone, natural cork

DIMENSIONS



CARAFES
Both our carafes are a beautiful natural, organic shape which is a pleasure to hold and pour from. They are made from lightweight and durable hand-blown glass, and come with our famous active charcoal water filter, giving you 6 months of pure, clear and delicious water.
The larger of the two, the Eau Carafe is perfect for entertaining and has a natural cork stopper with a removable silicone cap to prevent mould. The Personal Carafe is ideal at home on bedside and kitchen tables, or in the office to keep you hydrated throughout the day – it also comes with a small tumbler and sustainably-sourced cork coaster.
MATERIALS
Hand-blown borosilicate glass, natural cork (silicone - Eau Carafe only)
DIMENSIONS & PRODUCT CODES
Eau Carafe (EC002): D9.5 × H28 cm | D3.7 × H11 in Personal Carafe (EC003): D10 × H25 cm | D4 × H9.8 in



Sustainably-sourced cork stopper





ORIGINALS
This range represents the classic designs that started the journey for us. Inspired by Japanese Bento and how beautifully they present food, products in the Originals Collection have been best sellers for years. To celebrate their 10th anniversary in 2020, we updated them to be even better, whilst remaining true to their initial design aesthetic and appeal.


Olive BAO-BP010
LUNCH POT ORIGINAL

Ocean BAO-BP005

The Lunch Pot Original includes two leak proof pots that can be locked together for easy carrying. The pots are completely microwave and dishwasher-safe, a silicone strap holds the stainless steel “spork” (spoon and fork). Carry anything from breakfast to lunch and everything in between, and when you’re done, the smaller pot fits conveniently inside the larger pot for easy storage.

MATERIALS

Convenient carry handle
Two leak proof pots twist ‘lock’ together


Nests for convenient storage after use

LUNCH BOX ORIGINAL
1 L 34 fl oz
The Lunch Box Original includes an inner container as well as a leak proof sauce pot with a garnish area in the lid, and a stainless steel fork. Microwave-safe and fully leak proof, this is one of the most versatile lunch boxes in our entire range.




MATERIALS
Polypropylene, Tritan™, 304/18-8 stainless steel, silicone
DIMENSIONS
L20 × W20 × H5.5 cm | L7.9 × W7.9 × H2.2 in
Olive BAO-BA010 Ocean BAO-BA005



ACCESSORIES
Our accessories have been designed to pair with our main product ranges. From a reusable cutlery set, to a recycled PET Lunch Bag or even a recipe book, they are easy to add to any purchase.



RECIPE
BOOK - LET’S DO LUNCH BOX
With over 80 recipes to make mornings and lunchtimes brighter, healthier and more sustainable, ‘Let’s Do Lunch Box’ has been created specifically for our products. It is ideal to help boost average order value and merchandising within store. Including recipes from 4 well-known recipe developers, health, wellness and food influencers including Sara Kiyo Popowa (@shisidelicious) and Ryan Carter (@livevitae), it’s packed with nutritious and delicious meal ideas.

Better still, 5% of sales are donated to one of our charity partners, City Harvest, who rescue surplus food and redistribute it to food banks, schools and community groups.
DIMENSIONS & PRODUCT CODE
W2 x L19.5 × H23.5 cm | W0.8 x L7.7 x H9.2 in LBR-B001




LUNCH BAG

With a generous capacity of 6.7L and made from recycled plastic bottles, this lunch bag is all you need to carry your breakfast, lunch and snacks for the day. The sealed insulated construction keeps the contents cool, it’s also leak proof, water repellent and easy to wipe clean. The rolldown top and clip make it easy to carry, you can even strap it to your bike or backpack.

MATERIALS
Iron (hook), polypropylene (strap), Recycled PET (outer fabric), PEVA (BPA and food safe inner lining)

DIMENSIONS




Spoon, fork and knife nest neatly in the case
CUTLERY SET & CASE
STAINLESS STEEL CUTLERY


This stacking knife, fork and spoon set feels at home in your hands, and conveniently nests into a hygienic, compact carry case.
Also available as an alternative to the boxed packaging for merchandising in store, we have developed a Counter Display Unit (CDU); ideal to place near the checkout for impulse or add-on purchases. 16 units come in a shelf-ready display outer.
MATERIALS
304/18-8 stainless steel, polypropylene
DIMENSIONS & PRODUCT CODES
Cutlery Set & Case (BAM-SSC001):

L5 × W20 × H2 cm | L2 × W7.8 × H0.8 in
Cutlery Set & Case CDU (BAM-SSC002): L14.5 x W25 x H28 cm | W5.7 x D9.8 x H11 in


Packaging is fully recyclable
BRANDING
The Black+Blum brand is synonymous with original design and a sustainable mission. We proudly display our logo on all products and packaging, and include product features clearly outlined in simple yet effective illustrations and icons.
OUR PACKAGING
All our product packaging is made from unbleached and uncoated cardboard, making it better for recycling (it can even be added to home compost). Our packaging ensures all our designs are fully protected in transit and reach the end customer in perfect condition, yet are also beautifully presented and maintain a high value. It makes every product a potential selfpurchase or gift.

COUNTER POS STAND RISERS AND NAMEPLATE
Our euro hook stand is made of powder-coated steel, and assembles with just two screws, making it our simplest POS unit yet. It accommodates our charcoal boxes and also our cutlery set & case, with interchangable backing cards available in various languages as required. Comes flat-packed.



DIMENSIONS
The set of 3 powder-coated steel risers will help elevate and complement any display, and neatly stack together for convenient storage.

DIMENSIONS & PRODUCT CODES
WOODEN POS A5 STRUT CARDS
This floor-standing POS unit will make an impact in your store, and is ideal for displaying a wide range of Black+Blum products on a natural FSC Certified wooden surface. The top two shelves are high enough to accommodate the metal POS unit (for charcoal and cutlery). The stand comes flat-packed and is easy to assemble with supplied instructions.


DIMENSIONS & PRODUCT CODE
W65 x D36 x H171 cm
W25.5 x D14 x H67.3 in
POS-FSDU-S
Made from FSC certified wood

Include lifestyle and food imagery on your display to bring the products to life.
DIMENSIONS
Landscape: W21 x H14.8cm | W8.26 x H5.8 in
Portrait: W14.8 x H21cm | W5.8 x H8.26 in
Mounted cards with foot for easy display



















PHOTOGRAPHY AND VIDEOS
We have a wide range of lifestyle, food images and videos available to help support your online sales and social media.







LIFESTYLE AND FOOD

PRODUCT CUT OUTS











All images and videos can be found at

www.black-blumassets.com

VIDEOS

CO-BRAND WITH US
Our range of unique and eco-friendly products are the perfect gift or promotional item for your employees and corporate events. From water bottles to lunch boxes, insulated thermoses or even a portable cutlery set - the possibilities are endless.

We have laser-etching and printing suppliers in the UK, Europe and US or, for larger volumes, at our factories. Made from high quality materials, all our products are built to last and easy to customise. Enquire to create something special and sustainable with your logo.
EXPLORE CO-BRAND OPTIONS
View our brochure by scanning the QR code below or email us at co-brand@black-blum.com to learn more.
